Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965571AbXAZPym (ORCPT ); Fri, 26 Jan 2007 10:54:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965695AbXAZPym (ORCPT ); Fri, 26 Jan 2007 10:54:42 -0500 Received: from 85.8.24.16.se.wasadata.net ([85.8.24.16]:41126 "EHLO smtp.drzeus.cx" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965571AbXAZPyl (ORCPT ); Fri, 26 Jan 2007 10:54:41 -0500 Message-ID: <45BA2437.4000803@drzeus.cx> Date: Fri, 26 Jan 2007 16:54:31 +0100 From: Pierre Ossman User-Agent: Thunderbird 1.5.0.9 (X11/20061223) MIME-Version: 1.0 To: Petr Vandrovec , LKML Subject: ncpfs and TCP vs UDP Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2295 Lines: 48 Hi Petr, I was hoping you could give me some input on another concern I have. Which of TCP and UDP is the preferred transport for NCP? The client for Windows seems to use TCP, which would suggest that that is the most tested dialect. I also did a quick test with bonnie++: UDP: Version 1.03 -----Sequential Output------ --Sequential Input- --Random- -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks-- Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP 500M 1569 19 1714 10 826 9 1414 18 1569 9 65.2 3 ------Sequential Create------ --------Random Create-------- -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete-- files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP 16 460 14 897 16 556 15 491 15 1131 13 320 6 poseidon.drzeus.cx,500M,1569,19,1714,10,826,9,1414,18,1569,9,65.2,3,16,460,14,897,16,556,15,491,15,1131,13,320,6 TCP: Version 1.03 -----Sequential Output------ --Sequential Input- --Random- -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks-- Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP 500M 1653 19 3711 11 2312 9 1419 18 4489 6 91.5 1 ------Sequential Create------ --------Random Create-------- -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete-- files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP 16 483 14 912 15 587 14 483 14 1176 13 287 6 poseidon.drzeus.cx,500M,1653,19,3711,11,2312,9,1419,18,4489,6,91.5,1,16,483,14,912,15,587,14,483,14,1176,13,287,6 TCP has roughly twice the throughput of UDP. Note that this was done against a vmware machine that wasn't exactly maxing out the network. Input welcome. Rgds -- -- Pierre Ossman Linux kernel, MMC maintainer http://www.kernel.org PulseAudio, core developer http://pulseaudio.org rdesktop, core developer http://www.rdesktop.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/